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From 60b4fe65bc9dc9b82bbadf0be2e3781be796a13d Mon Sep 17 00:00:00 2001
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From: Albert Astals Cid <aacid@kde.org>
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Date: Tue, 1 May 2018 02:46:17 +0200
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Subject: FoFiType1C::cvtGlyph: Fix infinite recursion on malformed documents
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Bugs #104942, #103238
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---
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fofi/FoFiType1C.cc | 7 ++++---
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1 file changed, 4 insertions(+), 3 deletions(-)
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diff --git a/fofi/FoFiType1C.cc b/fofi/FoFiType1C.cc
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index 03e7799..b14561f 100644
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--- a/fofi/FoFiType1C.cc
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+++ b/fofi/FoFiType1C.cc
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@@ -13,7 +13,7 @@
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// All changes made under the Poppler project to this file are licensed
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// under GPL version 2 or later
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//
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-// Copyright (C) 2009, 2010 Albert Astals Cid <aacid@kde.org>
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+// Copyright (C) 2009, 2010, 2017, 2018 Albert Astals Cid <aacid@kde.org>
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// Copyright (C) 2012 Thomas Freitag <Thomas.Freitag@alfa.de>
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//
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// To see a description of the changes please see the Changelog file that
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@@ -32,6 +32,7 @@
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#include <math.h>
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#include "goo/gmem.h"
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#include "goo/gstrtod.h"
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+#include "goo/GooLikely.h"
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#include "goo/GooString.h"
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#include "FoFiEncodings.h"
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#include "FoFiType1C.h"
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@@ -1361,7 +1362,7 @@ void FoFiType1C::cvtGlyph(int offset, int nBytes, GooString *charBuf,
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--nOps;
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ok = gTrue;
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getIndexVal(subrIdx, k, &val, &ok;;
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- if (ok) {
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+ if (likely(ok && val.pos != offset)) {
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cvtGlyph(val.pos, val.len, charBuf, subrIdx, pDict, gFalse);
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}
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} else {
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@@ -1596,7 +1597,7 @@ void FoFiType1C::cvtGlyph(int offset, int nBytes, GooString *charBuf,
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--nOps;
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ok = gTrue;
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getIndexVal(&gsubrIdx, k, &val, &ok;;
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- if (ok) {
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+ if (likely(ok && val.pos != offset)) {
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cvtGlyph(val.pos, val.len, charBuf, subrIdx, pDict, gFalse);
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}
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} else {
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--
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cgit v1.1
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